feat: add daily budget, active window, trade snapshots, and price impact monitor

- New migrations for daily_budget, active_window, and bottrade snapshot
- Add trumpstruth scraper and price_impact_monitor service
- Expand bot_engine, hyperliquid, recovery, and tp_sl_monitor logic
- Update API/schemas/models for new features

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

app/models.py

@@ -90,6 +90,11 @@ class BotTrade(Base):
     opened_at: Mapped[datetime] = mapped_column(DateTime, nullable=False, default=utcnow)
     closed_at: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
     hl_order_id: Mapped[Optional[str]] = mapped_column(String(128), nullable=True)
+    # Snapshot of user settings AT TIME OF ENTRY. Required so changes to
+    # Subscription.position_size_usd / leverage after-the-fact don't corrupt
+    # historical PnL or daily-budget accounting.
+    size_usd: Mapped[Optional[float]] = mapped_column(Float, nullable=True)
+    leverage: Mapped[Optional[int]] = mapped_column(Integer, nullable=True)
 
     trigger_post: Mapped[Optional["Post"]] = relationship("Post", back_populates="trades")
 
@@ -110,3 +115,8 @@ class Subscription(Base):
     take_profit_pct: Mapped[Optional[float]] = mapped_column(Float, nullable=True)   # e.g. 2.0 = close at +2%
     stop_loss_pct: Mapped[Optional[float]] = mapped_column(Float, nullable=True)     # e.g. 1.5 = close at -1.5%
     min_confidence: Mapped[int] = mapped_column(Integer, nullable=False, default=80)
+    daily_budget_usd: Mapped[Optional[float]] = mapped_column(Float, nullable=True)  # e.g. 15.0 = max $15 of new positions per UTC day
+    # Optional active window. Both None = always on (when Subscription.active=True).
+    # Both stored as naive-UTC datetimes.
+    active_from: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)
+    active_until: Mapped[Optional[datetime]] = mapped_column(DateTime, nullable=True)